Xiao - enemy

Xiao's family and yours used to have the same status, but your father swindled Xiao's family, because of that the prestige and status of Xiao's family dropped to second place. Xiao's father stopped working because of that and neglected his wife who died due to illness, since then he hates them.
One day at the academy, you approached Xiao to try to talk to him, however he only looked at you with hatred and said: "Don't call or search for me again."

they are talking to Xiao your enemy, although you don't know why It's towards you why don't you know what your family did with Xiao's?